diff options
| author | Patrice Chotard <patrice.chotard@st.com> | 2017-10-03 15:54:57 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-10-08 16:19:56 -0400 |
| commit | d8f69e563b0477dddeeedf89407d01d6df7e124e (patch) | |
| tree | e29915a73e6714d0a20fbe18255f51d8148d27a7 /arch | |
| parent | eccac3e12030e501fdbc780f7f0ef85e0dc01ca2 (diff) | |
ARM: DTS: stm32: add SDMMC support fo stm32h743-eval
Add pinctrl and sdmmc nodes to add MMC support for
STM32H743 evaluation board.
Evaluation board needs a second pinctrl node
"pinctrl_sdmmc1_level_shifter" to drive a level shifter
on MMC bus.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/dts/stm32h743-pinctrl.dtsi | 11 | ||||
| -rw-r--r-- | arch/arm/dts/stm32h743i-eval.dts | 9 |
2 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/dts/stm32h743-pinctrl.dtsi b/arch/arm/dts/stm32h743-pinctrl.dtsi index d6a79aefb4..e4f4aa579b 100644 --- a/arch/arm/dts/stm32h743-pinctrl.dtsi +++ b/arch/arm/dts/stm32h743-pinctrl.dtsi @@ -259,6 +259,17 @@ bias-disable; }; }; + + pinctrl_sdmmc1_level_shifter: sdmmc0_ls@0 { + pins { + pinmux = <STM32H7_PB8_FUNC_SDMMC1_CKIN>, + <STM32H7_PB9_FUNC_SDMMC1_CDIR>, + <STM32H7_PC6_FUNC_SDMMC1_D0DIR>, + <STM32H7_PC7_FUNC_SDMMC1_D123DIR>; + drive-push-pull; + slew-rate = <3>; + }; + }; }; }; }; diff --git a/arch/arm/dts/stm32h743i-eval.dts b/arch/arm/dts/stm32h743i-eval.dts index 0e01ce51ab..28c876be27 100644 --- a/arch/arm/dts/stm32h743i-eval.dts +++ b/arch/arm/dts/stm32h743i-eval.dts @@ -98,3 +98,12 @@ st,sdram-refcount = <1539>; }; }; + +&sdmmc1 { + status = "okay"; + pinctrl-0 = <&sdmmc1_pins>, + <&pinctrl_sdmmc1_level_shifter>; + pinctrl-names = "default"; + bus-width = <4>; + st,dirpol; +}; |